Oliver Harmon "Spearchucker" Jones was a surgeon in the movie and television series M*A*S*H. He was portrayed by Fred Williamson in the movie and by Timothy Brown (who had played the corpsman Corporal Judson in the film) in the television series. Spearchucker was shown during several episodes during the first season of the series.

Dr. "Spearchucker" Jones was one of the original Swampmen, along with Trapper, Hawkeye, and Frank Burns. The TV show producers decided to drop the character after the first few episodes deciding they wouldn't be able to write enough meaningful episodes for Spearchucker if they were concentrating on Hawkeye and Trapper, and because they were made aware, or at least heard from some sources, that in reality, the United States Army had no African-American surgeons in the Korean Conflict, at least none which were stationed to a M*A*S*H* unit in Korea.

"Spearchucker" Jones was also a character from both the novel M*A*S*H by Richard Hooker and Robert Altman's movie. In each, the Spearchucker character, who was a stand-out collegiate athlete ("Spearchucker," ordinarily a racial slur, referred in this case to his javelin-throwing prowess) as well as a surgeon, is transferred to the 4077 to help them win a football game against a rival outfit.